Could a rear derailleur work on this bike?
#1
Could a rear derailleur work on this bike?
Update. Thanks all for your help and input. I decided to put a nexus 8 on my bicycle with the help of the suggestions here, we found that it will give me the 2 pounds I want taken off of the Pashe's weight and with switching out the heavy cranks and going with lighter tires it'll be even more. My project will end with that. Thanks all your input whether it was pro or con was valuable to me.
hi
Once again I'm here to get an answer that I just can't find through google. I did find a youtube video on someone putting a rear derailleur on an old bicycle but mine is different from his so I don't know if it even pertains
I have an English bicycle Pashley that wasn't made to have a rear derailleur but now that I can post photos I was wondering if someone could tell me if it's possible.
I do have two bicycles with gears a mixte soma buena vista 21 speed and a linus 7 speeds. I love them both but I love my pashley as well. It's not about the gears for the Pashley, I was looking for a way to shave two or three pounds off the weight because it's getting a little hard for me to lift it. gravity has a way of hitting you in the face when you're aging. the rear hub weighs 5.6 pounds so I'm seeing if a rear derailleur would shave a couple of pounds, if not I can bring it down to a 3 speed with a different hub.
The bicycle is upside down in these pictures
Our local bike shop is 3 to 4 weeks out for them to even look at my bicycle so I thought I'd try here first. Thanks in advance
hi
Once again I'm here to get an answer that I just can't find through google. I did find a youtube video on someone putting a rear derailleur on an old bicycle but mine is different from his so I don't know if it even pertains
I have an English bicycle Pashley that wasn't made to have a rear derailleur but now that I can post photos I was wondering if someone could tell me if it's possible.
I do have two bicycles with gears a mixte soma buena vista 21 speed and a linus 7 speeds. I love them both but I love my pashley as well. It's not about the gears for the Pashley, I was looking for a way to shave two or three pounds off the weight because it's getting a little hard for me to lift it. gravity has a way of hitting you in the face when you're aging. the rear hub weighs 5.6 pounds so I'm seeing if a rear derailleur would shave a couple of pounds, if not I can bring it down to a 3 speed with a different hub.
The bicycle is upside down in these pictures
Our local bike shop is 3 to 4 weeks out for them to even look at my bicycle so I thought I'd try here first. Thanks in advance
Last edited by oxfords1; 06-18-21 at 05:05 AM.
#2
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It’s possible but not very practical. Unless you can find a way to make that ‘claw’ adapter work backwards you’d have to remove the derailleur every time you wanted to remove the rear wheel
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[MENTION=343988]oxfords1[/MENTION]
Hard no, keep this one as is, if you're asking the question, this would likely be a nightmare.
If you're in England as I suspect, there may be a workaround/kludge of some sort but the skill level to wrangle it would be high, maybe someone makes a kit, again still an aggravating adventure at best and not simple as far as we know.
Take the big pile of money that it would take to do this and buy another bike with more gears like you want.
Hard no, keep this one as is, if you're asking the question, this would likely be a nightmare.
If you're in England as I suspect, there may be a workaround/kludge of some sort but the skill level to wrangle it would be high, maybe someone makes a kit, again still an aggravating adventure at best and not simple as far as we know.
Take the big pile of money that it would take to do this and buy another bike with more gears like you want.
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#5
thanks all. The main reason for this was to shave a few pounds off the heavy rear hub, but I'll take your advice and leave it as it is. I do have a nice soma mixte frame that's going to be put together on the 19th, so I'll have the gears and a lighter bike to cruise around in.
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#7
Senior Member
Many things are possible given enough time, money, mechanical aptitude and proper tools. Whether something is worth doing is another story.
If you google "derailleur hanger for horizontal dropout" or "derailleur hanger for track bike" you'll find some things made specifically for your situation. They look similar to the piece you showed, but they're a little different.
I'm assuming you know you can't use your current hub with a derailleur, so you'd need to replace the rear wheel entirely, or lace in a different hub.
Definitely a lot less hassle to find a frame/bike built for a rear derailleur than to try to adapt a rear-facing dropout on a Pashley.
If you google "derailleur hanger for horizontal dropout" or "derailleur hanger for track bike" you'll find some things made specifically for your situation. They look similar to the piece you showed, but they're a little different.
I'm assuming you know you can't use your current hub with a derailleur, so you'd need to replace the rear wheel entirely, or lace in a different hub.
Definitely a lot less hassle to find a frame/bike built for a rear derailleur than to try to adapt a rear-facing dropout on a Pashley.
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#8
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It is extremely unlikely a rear derailleur will work with your full chain guard.
Is that some kind of "Drum Brake"? Also not common with multi-speed frewheels/cassettes, although Sturmey Archer has a 135mm cassette drum brake (135mm dropout spacing which is likely wider than you have), (Sturmey Archer X-RD with 7 speed freewheel or X-RDC).
There are some derailleur hangers that are attached to track ends. Litespeed has done it on a few of their bikes. The easiest mod would be to weld or braze a derailleur hanger to your track end. It should just need a small bit of black paint to touch up.
HOWEVER, my choice with your bike would be to upgrade to a multi-speed drum brake hub.
Something like the Sturmey Archer S80 X-RD8 (W). According to the website, 132mm OLD which is a bit wide, but perhaps something you could work with (likely re-spacing your frame).
I think first gear is 1:1, and 8th gear is 325% harder. So, you need a small front sprocket and large rear sprocket.
Other multi-speed drum brake hubs are available from 3s to 8s, some with lower gearing for first gear.
Is that some kind of "Drum Brake"? Also not common with multi-speed frewheels/cassettes, although Sturmey Archer has a 135mm cassette drum brake (135mm dropout spacing which is likely wider than you have), (Sturmey Archer X-RD with 7 speed freewheel or X-RDC).
There are some derailleur hangers that are attached to track ends. Litespeed has done it on a few of their bikes. The easiest mod would be to weld or braze a derailleur hanger to your track end. It should just need a small bit of black paint to touch up.
HOWEVER, my choice with your bike would be to upgrade to a multi-speed drum brake hub.
Something like the Sturmey Archer S80 X-RD8 (W). According to the website, 132mm OLD which is a bit wide, but perhaps something you could work with (likely re-spacing your frame).
I think first gear is 1:1, and 8th gear is 325% harder. So, you need a small front sprocket and large rear sprocket.
Other multi-speed drum brake hubs are available from 3s to 8s, some with lower gearing for first gear.
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#9
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There's actually a really nice way to do it, but I still wouldn't recommend on that frame. A Problem Solvers chain tensioner with derailleur hanger.
I used one on this frame to provide full gears on a singlespeed frame I liked (and was super cheap).
Have to zoom in to see it.
I used one on this frame to provide full gears on a singlespeed frame I liked (and was super cheap).
Have to zoom in to see it.
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#10
Many things are possible given enough time, money, mechanical aptitude and proper tools. Whether something is worth doing is another story.
If you google "derailleur hanger for horizontal dropout" or "derailleur hanger for track bike" you'll find some things made specifically for your situation. They look similar to the piece you showed, but they're a little different.
I'm assuming you know you can't use your current hub with a derailleur, so you'd need to replace the rear wheel entirely, or lace in a different hub.
Definitely a lot less hassle to find a frame/bike built for a rear derailleur than to try to adapt a rear-facing dropout on a Pashley.
If you google "derailleur hanger for horizontal dropout" or "derailleur hanger for track bike" you'll find some things made specifically for your situation. They look similar to the piece you showed, but they're a little different.
I'm assuming you know you can't use your current hub with a derailleur, so you'd need to replace the rear wheel entirely, or lace in a different hub.
Definitely a lot less hassle to find a frame/bike built for a rear derailleur than to try to adapt a rear-facing dropout on a Pashley.
#11
There's actually a really nice way to do it, but I still wouldn't recommend on that frame. A Problem Solvers chain tensioner with derailleur hanger.
I used one on this frame to provide full gears on a singlespeed frame I liked (and was super cheap).
Have to zoom in to see it.
I used one on this frame to provide full gears on a singlespeed frame I liked (and was super cheap).
Have to zoom in to see it.
#12
It is extremely unlikely a rear derailleur will work with your full chain guard.
Is that some kind of "Drum Brake"? Also not common with multi-speed frewheels/cassettes, although Sturmey Archer has a 135mm cassette drum brake (135mm dropout spacing which is likely wider than you have), (Sturmey Archer X-RD with 7 speed freewheel or X-RDC).
There are some derailleur hangers that are attached to track ends. Litespeed has done it on a few of their bikes. The easiest mod would be to weld or braze a derailleur hanger to your track end. It should just need a small bit of black paint to touch up.
HOWEVER, my choice with your bike would be to upgrade to a multi-speed drum brake hub.
Something like the Sturmey Archer S80 X-RD8 (W). According to the website, 132mm OLD which is a bit wide, but perhaps something you could work with (likely re-spacing your frame).
I think first gear is 1:1, and 8th gear is 325% harder. So, you need a small front sprocket and large rear sprocket.
Other multi-speed drum brake hubs are available from 3s to 8s, some with lower gearing for first gear.
Is that some kind of "Drum Brake"? Also not common with multi-speed frewheels/cassettes, although Sturmey Archer has a 135mm cassette drum brake (135mm dropout spacing which is likely wider than you have), (Sturmey Archer X-RD with 7 speed freewheel or X-RDC).
There are some derailleur hangers that are attached to track ends. Litespeed has done it on a few of their bikes. The easiest mod would be to weld or braze a derailleur hanger to your track end. It should just need a small bit of black paint to touch up.
HOWEVER, my choice with your bike would be to upgrade to a multi-speed drum brake hub.
Something like the Sturmey Archer S80 X-RD8 (W). According to the website, 132mm OLD which is a bit wide, but perhaps something you could work with (likely re-spacing your frame).
I think first gear is 1:1, and 8th gear is 325% harder. So, you need a small front sprocket and large rear sprocket.
Other multi-speed drum brake hubs are available from 3s to 8s, some with lower gearing for first gear.
#13
Not lost wanderer.
I have a couple of bikes and extra derailleurs over at my house in Cambodia that would work.
They have the slot setup toward the rear so it would work with a bike with rear opening set of dropouts.
you have to look real close to see it on this bike.
They have the slot setup toward the rear so it would work with a bike with rear opening set of dropouts.
you have to look real close to see it on this bike.
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#14
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Not advisable on a rear-facing end city bicycle - not to mention that the derailer would be fitted to the chaincase side of the bike, thus requiring removal of the entire chaincase.
Just FYI to all reading the thread, I *believe* the OP's bike is a Pashley Roadster, like this one:
It's possible to put a derailer drivetrain on one of these, but a fool's errand. I'd more sooner look for a modernized Raleigh Sprite.
However, if you want to shave weight from it, an excellent (and fitting) upgrade would be to swap out the Sturmey hub to a lighter Shimano Nexus Inter 8. The Inter 8 has splines for a roller brake, so you won't lose braking performance in the back, and it'll be a drop-in fit. It won't be massively lighter, but it will be an improvement over the Sturmey.
-Kurt
Just FYI to all reading the thread, I *believe* the OP's bike is a Pashley Roadster, like this one:
It's possible to put a derailer drivetrain on one of these, but a fool's errand. I'd more sooner look for a modernized Raleigh Sprite.
However, if you want to shave weight from it, an excellent (and fitting) upgrade would be to swap out the Sturmey hub to a lighter Shimano Nexus Inter 8. The Inter 8 has splines for a roller brake, so you won't lose braking performance in the back, and it'll be a drop-in fit. It won't be massively lighter, but it will be an improvement over the Sturmey.
-Kurt
Last edited by cudak888; 06-13-21 at 08:23 PM.
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#15
Senior Member
You may save some weight by going to a freewheel or cassette, but make sure you carefully count all the components you are adding.
Hub, freewheel/cassette, rear derailleur, hanger, probably a different chainring, whatever rear brake you choose, shifter, etc.
Unless you are going full racing equipment, you're likely going to have a couple of pounds of new parts. As mentioned, you'll likely lose the chain guard/chaincase (or go to a very short chainguard) which will save a bit. But, you could make that change anyway.
If you really want to save some weight and improve the ride, try Compass Tires (now Rene Herse)
I don't see what type of tire you have. But, for example, 26″ x 2.3″ Rat Trap Pass Tire, Extralight is 418g each.
26″ x 1.8″ Naches Pass Tire Extralight is 300g.
You may also look at lightweight tubes.
If you are using a tire liner, try the Panaracer Flataway tire liner.
Hub, freewheel/cassette, rear derailleur, hanger, probably a different chainring, whatever rear brake you choose, shifter, etc.
Unless you are going full racing equipment, you're likely going to have a couple of pounds of new parts. As mentioned, you'll likely lose the chain guard/chaincase (or go to a very short chainguard) which will save a bit. But, you could make that change anyway.
If you really want to save some weight and improve the ride, try Compass Tires (now Rene Herse)
I don't see what type of tire you have. But, for example, 26″ x 2.3″ Rat Trap Pass Tire, Extralight is 418g each.
26″ x 1.8″ Naches Pass Tire Extralight is 300g.
You may also look at lightweight tubes.
If you are using a tire liner, try the Panaracer Flataway tire liner.
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#16
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#17
Oh yeah, look at that. I downloaded your picture and blew it up. your bicycle's rear is exactly like mine. Do you know what they're called and how I can get my hands on one? thanks for your input
#18
Last edited by oxfords1; 06-14-21 at 08:34 AM.
#19
You may save some weight by going to a freewheel or cassette, but make sure you carefully count all the components you are adding.
Hub, freewheel/cassette, rear derailleur, hanger, probably a different chainring, whatever rear brake you choose, shifter, etc.
Unless you are going full racing equipment, you're likely going to have a couple of pounds of new parts. As mentioned, you'll likely lose the chain guard/chaincase (or go to a very short chainguard) which will save a bit. But, you could make that change anyway.
If you really want to save some weight and improve the ride, try Compass Tires (now Rene Herse)
I don't see what type of tire you have. But, for example, 26″ x 2.3″ Rat Trap Pass Tire, Extralight is 418g each.
26″ x 1.8″ Naches Pass Tire Extralight is 300g.
You may also look at lightweight tubes.
If you are using a tire liner, try the Panaracer Flataway tire liner.
Hub, freewheel/cassette, rear derailleur, hanger, probably a different chainring, whatever rear brake you choose, shifter, etc.
Unless you are going full racing equipment, you're likely going to have a couple of pounds of new parts. As mentioned, you'll likely lose the chain guard/chaincase (or go to a very short chainguard) which will save a bit. But, you could make that change anyway.
If you really want to save some weight and improve the ride, try Compass Tires (now Rene Herse)
I don't see what type of tire you have. But, for example, 26″ x 2.3″ Rat Trap Pass Tire, Extralight is 418g each.
26″ x 1.8″ Naches Pass Tire Extralight is 300g.
You may also look at lightweight tubes.
If you are using a tire liner, try the Panaracer Flataway tire liner.
#20
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Second, I don't think you will save as much weight as you think. You will be subtracting the weight of the hub, yes, but you'll then add the weight of the derailleur, cassette or freewheel, the extra chain, brake caliper, etc. You'll probably save no more than half a pound for all the work that you'll put into it. It'd be simpler to just skip lunch a few days.
#21
First, Sturmey lists the weight as 2170g, which is a bit more than 4.5 pounds. Perhaps you are including the weight of the whole wheel in your estimate.
Second, I don't think you will save as much weight as you think. You will be subtracting the weight of the hub, yes, but you'll then add the weight of the derailleur, cassette or freewheel, the extra chain, brake caliper, etc. You'll probably save no more than half a pound for all the work that you'll put into it. It'd be simpler to just skip lunch a few days.
Second, I don't think you will save as much weight as you think. You will be subtracting the weight of the hub, yes, but you'll then add the weight of the derailleur, cassette or freewheel, the extra chain, brake caliper, etc. You'll probably save no more than half a pound for all the work that you'll put into it. It'd be simpler to just skip lunch a few days.
#22
Senior Member
It is easy to get a derailleur which bolts to the end of the axle. However, the derailleur would come off every time you remove the wheel. This may or may not be of concern to you.
The challenge is to buy, or modify something, so the derailleur remains attached to the bike when you remove the wheel.
There have been some suggestions in previous posts which could be used.
Another idea to consider, is to buy a bracket like shown in the video in the first post, but facing the opposite direction. You could then use a wide range of derailleurs.
The challenge is to buy, or modify something, so the derailleur remains attached to the bike when you remove the wheel.
There have been some suggestions in previous posts which could be used.
Another idea to consider, is to buy a bracket like shown in the video in the first post, but facing the opposite direction. You could then use a wide range of derailleurs.
Last edited by alo; 06-14-21 at 07:07 AM.
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#23
It is easy to get a derailleur which bolts to the end of the axle. However, the derailleur would come off every time you remove the wheel. This may or may not be of concern to you.
The challenge is to buy, or modify something, so the derailleur remains attached to the bike when you remove the wheel.
There have been some suggestions in previous posts which could be used.
Another idea to consider, is to buy a bracket like shown in the video in the first post, but facing the opposite direction. You could then use a wide range of derailleurs.
The challenge is to buy, or modify something, so the derailleur remains attached to the bike when you remove the wheel.
There have been some suggestions in previous posts which could be used.
Another idea to consider, is to buy a bracket like shown in the video in the first post, but facing the opposite direction. You could then use a wide range of derailleurs.
#24
Senior Member
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#25
Senior Member
Coaster/drum brake? If so, what do you plan to do about rear braking? Then there's the already-mentioned question of what to do about the full chain case.
You see how these quickly become cans o'worms? It's not just a matter of hanging a derailleur swapping wheels. The bike was designed around an IGH with an integrated brake. Every pound you think you're saving may actually just mean moving that pound to another part of the bike.
You see how these quickly become cans o'worms? It's not just a matter of hanging a derailleur swapping wheels. The bike was designed around an IGH with an integrated brake. Every pound you think you're saving may actually just mean moving that pound to another part of the bike.